- IGCT: Technical discussion forum for plant equipment
- Sumatron – RSO instruments, Electrical Protection, Protection Seminars
- EPRI – Electric Power Research Institute
- Alstom Power
- Siemens Power Generation
- General Electric Power Generation
- Mitsubishi Power Generation
- Toshiba Power Generation
- Hitachi Power Systems USA
- Waukesha Power Transformers
- Hyundai Power Transformers & Generators
- Suzlon Wing Generation
